From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tom Bruno Subject: cpu won't stay in powersave mode Date: Mon, 15 Dec 2003 01:17:25 +0000 Sender: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Message-ID: <1071451044.4757.9.camel@localhost> Reply-To: crweb@vwords.com Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Return-path: List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: cpufreq-bounces+glkc-cpufreq=gmane.org@www.linux.org.uk Content-Type: text/plain; charset="us-ascii" To: cpufreq@www.linux.org.uk I'm in the process of writing an acpi daemon that will also take care of cpufreq settings. I have found that unless I set /sys/device/system/cpu/cpu0/cpfreq/scaling_governer to powersave from the command line that /proc/cpuinfo will not change and the speed will not stay at powersave speeds. With other programs like cpufreqd, using a cpu speed test posted on this list, i have found that the cpu speed does indeed change even though /proc/cpuinfo does not. However, i have found that after about 8-10 seconds the cpu test starts reporting that the cpu is back to full speed even though the powersave value is still in scaling_governer. Like i said above if I change it via hand using echo, /proc/cpuinfo is correct, and the cputest reports the correct speed constantly. performance mode: 2.4ghz powersave mode: 1.2ghz Intel P4-M 2.4ghz Dell Inspiron 8500 - Bios A05 kernel-2.6.0-test11 -- Vwords.com Technology Services PC and Network Services for Southern Illinois Phone: 618-713-6896